Siemens AVS75.39 Series User Manual page 159

Siemens
Building Technologies
Connection of a solid fuel boiler requires a circulating pump for the boiler circuit.
Time program 5 K13
The relay switches any connected component at the points in time set in time
program 5 (601 – 616).
Buffer return valve Y15
The valve must be configured for return temperature increase / decrease or buffer
storage tank partial charging.
Solar pump ext exch K9
For the external heat exchanger, solar pump "Ext heat exchanger K9" must be set
at the multifunctional relay output (QX).
If both a DHW and a buffer storage tank are available, operating line 5841
"External solar exchanger" must also be set.
Solar ctrl elem buffer K8
If several heat exchangers are used, the buffer storage tank must be set at the
respective relay output and, in addition, the type of solar controlling element must
be defined on line 5840).
Solar ctrl elem swi pool K18
If several heat exchangers are used, the swimming pool must be set at the
respective relay output and, in addition, the type of solar controlling element must
be defined on operating line 5840).
Collector pump 2 Q16
When using a solar collector, a circulating pump for the collector circuit is required.
Swimming pool pump Q19
The connected pump is used for the swimming pool circuit.
Flue gas relay K17
Relay K17 closes if the flue gas temperature exceeds value set in operating line
"flue gas temperature limit" line 7053.
Assisted firing fan K30
The setting has no function assigned.
Cascade pump Q25
Common pump for all boilers in a cascade.
User manual RVS43.345
The settings in detail
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CE1U2354en_021
2013-09-02